Note: This tutorial speaks specifically to my observations regarding the described processes. Your experiences and outcomes may vary.
This guide offers a summary of the steps I followed while using an iPad (3rd gen) to set up a Google Chromecast. Visit support.google.com/chromecast if you have issues/questions.
As of July 30, 2013, with a Chromecast dongle and an iPad you will be limited to casting videos to a TV via the NetFlix and YouTube apps. Both apps also worked with my iPhone 4.
At the time this guide was prepared, a web browser was the only way to configure a Chromecast while using an iPad. A Chromecast iOS setup app is expected in the iOS App Store in the future.
To begin, plug the appropriate end of the USB cable into the Chromecast dongle and the other end into a power supply. 2) Plug power supply into a power outlet. 3) Plug the dongle into TV's HDMI input.
Go to google.com/chromecast/setup in a web browser. You will see the Welcome screen. Tap "Setup with Browser" button. Note: A Chromecast iOS setup app is expected in the iOS App Store in the future.
Read and accept the Chromecast Privacy and Terms before continuing.
When you see this screen on your TV, tap the "Yep, Got It" button.
You will need to multitask by opening the Settings app on the iPad and selecting Chromecast (your number) in the Wi-Fi network list. Return to the web browser and tap the "Next" button.
If you a matching Chromecast code on your TV, tap the "That's My Code" button.
If the Wi-Fi network is correct, type in the password (if needed) and change the Chromecast name to something you prefer. Tap the "Next" button.
Wait for Chromecast to be configured. Note: This process took me a couple of tries before it successfully configured my Chromecast.
I had a problem on this step until I realized I needed to open the Settings app and select my Wi-Fi network instead of the Chromecast. Then I returned to the setup instructions and tapped "Next."
Chromecast is now configured and ready for use. As of July 30, 2013, you can cast video to a TV with the YouTube and Netflix apps on your iOS mobile device. No other features are currently supported.